1) β hydrogen elimi nation
β-H消去反应
2) β-elimination
β-消去反应
1.
The results indicated that de-esterification at low temperature(5℃) gave lessβ-elimination reaction,with better specific viscosity retained.
结果表明,低温下(5℃)碱法脱酯可将影响果胶品质的β-消去反应控制在较小程度,所得产品特性粘度能最大程度保持。
2.
The results indicated that higher concentration of ammonia (4N) at low temperature (5℃) gives lessβ-elimination reaction, with better specific viscosity retained and increases the conversion of methoxyl groups to acid amide groups.
结果表明,低温下(5℃)高浓度氨水(4N)脱酯可将影响果胶品质的β-消去反应控制在较小程度,所得产品特性粘度较高,酰胺化程度(DA值)较大;而低浓度氨水(1N)处理则得到酰胺化程度较低的产品。
3) β-elimination reaction
β-消去反应
1.
The component analysis of the eluate of gel chromatography and the β-elimination reaction results show that the protein in the enzymatic hydrolysate of rice protein is sugar-protein complex(glycoprotein) linked by N-glycoside peptide bond.
凝胶色谱洗脱组分分析和β-消去反应结果表明,酶水解所溶出的大米蛋白与糖分子仍以N-糖肽键形式连接。
2.
On the basis of the analysis of the mechanism of β-elimination reaction of haloalkyl,the influence regularity of the dissolvent polority for the reaction is discussed.
在分析了卤代烷β－消去反应的反应机理的基础上，讨论了溶剂的极性对反应的影响规律。
3.
The results showed that low temperature(4 ℃) not only could reduce the β-elimination reaction which will impact pectin quality but also keep the viscosity of the product at a h.
结果表明,低温下(4℃)碱法脱酯可将影响果胶品质的β-消去反应控制在较小程度,所得产品黏度能最大程度得到保持。
4) elimination
[英][i,limi'neiʃən] [美][ɪ,lɪmə'neʃən]
消去反应
1.
The procedures are described involving a selective Hofmanntype elimination of the 2cyanoethyl groups from the bisimidazolium salts 3 obtained by the reaction of α,ωdihalides 2 with 1Himidazole1propanenitrile 1.
１（２氰乙基）咪唑１与α，ω二卤化合物２反应生成双咪唑钅翁盐３，３在碱的作用下发生选择性Ｈｏｆｍａｎｎ型消去反应以９０。
2.
Using the –~CHR-(CH_2)_3-NFCH_3 (R = H, CH_3, CH_2CF_3, CHO, COCH_3) as the computational model, the two possible intramolecular reactions, nucleophilic substitution on nitrogen and elimination reaction, are studied at the theoretical level of MP2(full)/6-31+G(d,p).
我们在MP2(full)/6-31+G(d,p) 理论水平上,以–~CHR-(CH_2)_3-NFCH_3(R = H, CH_3, CH_2CF_3, CHO, COCH_3)为计算模型,对分子内可能发生的两条反应路径—氮原子上的亲核取代反应及消去反应进行了理论研究。
5) heating elimination
热消去反应
1.
The heating elimination reaction in organic synthesis;
有机合成中的热消去反应
6) β-hydrogen elimination
β-氢消除反应
补充资料：柯普消去反应
分子式：
CAS号：
性质：当叔胺的β-位至少有一个氢原子时，其N-氧化物在被加热到150～200℃时发生消去反应，形成烯烃的反应，也称柯普消去反应(Cope elimination)。通常反应需在减压和充氮气的条件下操作，主要得到顺式消去的产物。
CAS号：
性质：当叔胺的β-位至少有一个氢原子时，其N-氧化物在被加热到150～200℃时发生消去反应，形成烯烃的反应，也称柯普消去反应(Cope elimination)。通常反应需在减压和充氮气的条件下操作，主要得到顺式消去的产物。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条